following-sibling::node()[1][self::comment()]
selects the following sibling node if it is a comment.
If there's a whitespace text node in between the context node and the
comment, following-sibling::node()[1] will be a text node, so nothing will
be selected.
So it's a good idea to get rid of whitespace text nodes using strip-space.
Michael Kay
http://www.saxonica.com/
-----Original Message-----
From: Wasiq Shaikh [mailto:wasiq911(_at_)hotmail(_dot_)com]
Sent: 20 August 2007 18:35
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: [xsl] Selecting First Direct Sibling
Hello,
I'm having a weird and frustrating problem. I have two XSL
files (XPath1.0/Xalan2.7J). Both do the same thing. One
(mine) is more robust and has a bit more processing. The
other more simplistic and different formatting but with the
same goal in mind. That goal is to produce a flat list of
elements and its attributes from an XML Schema document.
The objective here is to get the comment block directly after
an element and/or attribute declaration.
Example:
<xsd:element name="blah">
<!-- This is a comment about the element blah -->
<xsd:attribute name="someAttribute"/>
<xsd:attribute name="blahAttribute"/>
<!-- This is a comment about the attribute blahAttribute
under element blah --> </xsd:element>
Let's focus on grabbing the comment block under attributes.
In the simplistic XSL tranformation we have this:
<xs:stylesheet exclude-result-prefixes="xsd"
xmlns:xsd="http://www.w3.org/2001/XMLSchema";
xmlns:xs="http://www.w3.org/1999/XSL/Transform";
version="1.0"
xmlns:xalan="http://xml.apache.org/xslt";>
<xs:output indent="yes" xalan:indent-amount="3"/>
<xs:template match="/">
<xs:element name="Repository">
<xs:element name="Elements">
<xs:apply-templates select="/*/*"/>
</xs:element>
</xs:element>
</xs:template>
<xs:template match="xsd:element[(_at_)name]">
<xs:element name="{(_at_)name}">
<xs:if test="string(@type)">
<xs:attribute name="type">
<xs:value-of select="@type"/>
</xs:attribute>
</xs:if>
<xs:for-each select="*[name()='xsd:simpleType' or
name()='xsd:complexType']">
<xs:apply-templates select="*"/>
</xs:for-each>
</xs:element>
</xs:template>
<xs:template match="xsd:attribute">
<xs:element name="attribute">
<xs:attribute name="name">
<xs:value-of select="@name"/>
</xs:attribute>
<xs:copy-of
select="following-sibling::node()[1][self::comment()]"/>
</xs:element>
</xs:template>
<xs:template match="xsd:sequence|xsd:choice">
<xs:apply-templates select="*"/>
</xs:template>
<xs:template match="node()|@*"/>
</xs:stylesheet>
This works great. It grabs the comment block directly after
an attribute. If it doesn't exist it doesn't process
anything. The output will be this:
<blah>
<attribute name="someAttribute"/>
<attribute name="blahAttribute"/>
<!-- This is a comment about the attribute blahAttribute
under element blah --> </blah>
So, I take this simplistic stylesheet and make it more
robust, more descriptive, added a few changes to the format,
some more descriptive attributes, process complexTypes and
extensions and so forth ... However, the comment grab doesn't work.
------
OHHH ... SOB!!! I figured it out! [40 minutes later] I'll
leave the original message I was typing so others will
understand the problem.
Apparently, adding/removing this line
<xsl:strip-space elements="xsd:complexType"/>
makes the script work/not work. This doesn't make sense to me
.. what does this have to do with processing comments?
W.S
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